Hanzi Week 1

Characters and Words:

Week 1
Lesson 1:
1. yī  2. èr  3. sān  4. liù  5. bā  6. shí (shí yī, shí èr, shí sān, shí liù, shí bā, èr shí, sān shí, liù shí, bā shí)

Lesson 2:
1. sì (shí sì, sì shí)  2. wǔ (shí wǔ, wǔ shí)  3. qī (shí qī, qī shí)  4. jiǔ (shí jiǔ, jiǔ shí) 5. gè  6. liǎng (liǎng gè)

Lesson 3:
1. jǐ (jǐ gè)  2. bàn (bàn gè, yí bàn)  3. bǎi (yì bǎi, sān bǎi)  4. qiān (yì qiān, wǔ qiān)  5. wàn (yí wàn)  6. rén

Lesson 4:
1. gōng (gōng rén) 2. gān  3. tiān (yì tiān, liǎng tiān, bàn tiān)  4. jīn (jīn tiān) 5, fū  6. zhàng (zhàng fu)

Next
from Coursera Chinese Characters for beginner 汉字 by Peking University
Link: https://www.coursera.org/learn/hanzi/home

deleteDigit

My solution:

int deleteDigit(int n) 
{
    return int.Parse(n.ToString().Select((c, i) => n.ToString().Remove(i, 1)).Max());;
}

Previous Next

chessKnight

My solution:

int chessKnight(string cell) 
{
    var possible_moves = new List<string>();

    // Upward
    if (int.Parse(cell[1].ToString()) + 2 <= 8)
    {
        if (cell[0] >= 'b')
            possible_moves.Add((char)(cell[0] - 1) + ((char) (cell[1] + 2)).ToString());

        if (cell[0] <= 'g')
            possible_moves.Add((char)(cell[0] + 1) + ((char)(cell[1] + 2)).ToString());
    }

    // Rightward
    if (cell[0] <= 'f')
    {
        if (int.Parse(cell[1].ToString()) <= 7)
            possible_moves.Add((char)(cell[0] + 2) + ((char)(cell[1] + 1)).ToString());

        if (int.Parse(cell[1].ToString()) >= 2)
            possible_moves.Add((char)(cell[0] + 2) + ((char)(cell[1] - 1)).ToString());
    }

    // Downward
    if (int.Parse(cell[1].ToString()) - 2 >= 1)
    {
        if (cell[0] >= 'b')
            possible_moves.Add((char)(cell[0] - 1) + ((char)(cell[1] - 2)).ToString());

        if (cell[0] <= 'g')
            possible_moves.Add((char)(cell[0] + 1) + ((char)(cell[1] - 2)).ToString());
    }

    // Leftward
    if (cell[0] >= 'c')
    {
        if (int.Parse(cell[1].ToString()) <= 7)
            possible_moves.Add((char)(cell[0] - 2) + ((char)(cell[1] + 1)).ToString());

        if (int.Parse(cell[1].ToString()) >= 2)
            possible_moves.Add((char)(cell[0] - 2) + ((char)(cell[1] - 1)).ToString());
    }

    return possible_moves.Count;
}

Previous Next

lineEncoding

My solution:

string lineEncoding(string s) 
{
    var c = new char();
    var answer = string.Empty;
    var counter = 0;
    for (var i = 0; i < s.Length; i++)
    {
        if (c == '\0')
        {
            c = s[i];
            counter++;
        }
        else if (c == s[i])
        {
            counter++;
            if (i == s.Length - 1)
                answer += counter.ToString() + c;
        }
        else
        {
            if (counter > 1)
                answer += counter.ToString() + c;
            else
                answer += c;

            c = s[i];
            counter = 1;
            if (i == s.Length - 1)
                answer += c;
        }
    }

    return answer;
}

Previous Next

isDigit

My solution:

bool isDigit(char symbol) 
{
    return char.IsDigit(symbol);
}

Previous Next

Is MAC48 Address?

My solution:

bool isMAC48Address(string inputString) 
{
    return Regex.IsMatch(inputString, "^([0-9A-F]{2}-){5}[0-9A-F]{2}$");
}

Previous Next

Elections Winners

My solution:

int electionsWinners(int[] votes, int k) 
{
    var max = votes.Max();
    return k == 0 && votes.Where(d => d == votes.Max()).Count() == 1 ? 1 : votes.Count(t => t + k > max);
}

Previous Next